A cleavage furrow is _____.
A) the space that is created between two chromatids during anaphase
B) a ring of vesicles forming a cell plate
C) the
... [Show More] separation of divided prokaryotes
D) a groove in the plasma membrane between daughter nuclei
E) none of the above - ✔✔ D) a groove in the plasma membrane between daughter nuclei
Taxol is an anticancer drug extracted from the Pacific yew tree. In animal cells, Taxol disrupts microtubule formation. Surprisingly,
this stops mitosis. Specifically, Taxol must affect _____.
A) formation of the centrioles
B) chromatid assembly
C) anaphase
D) the nuclear membrane
E) none of the above - ✔✔ E) none of the above
In meiosis, sister chromatids are separated during _____.
A) anaphase II
B) prophase I
C) mitosis
D) anaphase I
E) none of the above - ✔✔ A) anaphase II
Sister chromatids _____.
A) align on the metaphase plate in meiosis II
B) carry the same alleles
C) are identical
D) separate during anaphase II
E) all of the above - ✔✔ E) all of the above
What do we mean when we use the terms monohybrid cross and dihybrid cross?
A) A monohybrid cross results in a 9:3:3:1 ratio whereas a dihybrid cross gives a 3:1 ratio
B) A monohybrid cross is performed for one generation, whereas a dihybrid cross is performed for two generations
C) dihybrid cross involves organisms that are heterozygous for two characters that are being studied, and a monohybrid cross
involves organisms that are heterozygous for only one character being studied
D) A monohybrid cross involves a single parent, whereas a dihybrid cross involves two parents
E) none of the above - ✔✔ C) dihybrid cross involves organisms that are heterozygous for two characters that are being studied, and a monohybrid cross
involves organisms that are heterozygous for only one character being studied
A man has extra digits (six fingers on each hand and six toes on each foot). His wife and their daughter have a normal number of
digits. Having extra digits is a dominant trait. The couple's second child has extra digits. What is the probability that their next (third)
child will have extra digits?
A) 1/8
B) 3/4
C) 1/2
D) 1/16
E) none of the above - ✔✔ C) 1/2
Which of the following describes condition where a gene at one locus alters the phenotypic expression of a gene at a second locus?
A) incomplete dominance
B) multiple alleles
C) pleiotropy
D) epistasis
E) none of the above - ✔✔ D) epistasis
The following macromolecule was labeled with 15N or 14N
A) protein
B) RNA
C) DNA
D) phospholipids
E) none of the above - ✔✔ C) DNA
The following prediction described the conservative model of replication
(diagram) - ✔✔ A
The following prediction described the dispersive model of replication
(diagram) - ✔✔ C
The following prediction described the semiconservative model of replication
(diagram) - ✔✔ B
The following prediction of replication was shown to be the correct model
(diagram) - ✔✔ B
A man who carries an allele of an X-linked gene will pass it on to _____.
A) half of his daughters
B) all of his daughters
C) all of his sons
D) all of his children
E) none of the above - ✔✔ B) all of his daughters
The figure above shows the formation and inactivation of the following molecule:
A) NADH
B) GTP
C) cAMP
D) IP3
E) DAG - ✔✔ C) cAMP [Show Less]